12975 Efremov
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| Discovery and designation | |
|---|---|
| Discovered by | N. S. Chernykh |
| Discovery site | Crimean Astrophysical Observatory |
| Discovery date | September 28, 1973 |
| Designations | |
| MPC designation | 12975 |
| Alternative names | 1973 SY5 |
| Orbital characteristics | |
| Epoch May 14, 2008 | |
| Aphelion | 2.9529260 |
| Perihelion | 2.2219612 |
| Eccentricity | 0.1412523 |
| Orbital period | 1520.2140968 |
| Mean anomaly | 82.73680 |
| Inclination | 15.14376 |
| Longitude of ascending node | 186.38020 |
| Argument of perihelion | 217.06574 |
| Physical characteristics | |
| Absolute magnitude (H) | 13.4 |
|
| |
12975 Efremov (1973 SY5) is a main-belt asteroid discovered on September 28, 1973 by N. S. Chernykh at the Crimean Astrophysical Observatory. It was named after the Russian astronomer Yuri Efremov - and not after the palaeontologist and writer Ivan Yefremov, whose name was previously given to the asteroid 2269 Efremiana.
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